build: add new status to verify if all the required gha jobs have run (#44560)

build: add new status to verify if all the required gha jobs have run (#44432)

(cherry picked from commit 1c1eb3e19d)

Co-authored-by: trop[bot] <37223003+trop[bot]@users.noreply.github.com>
Co-authored-by: John Kleinschmidt <jkleinsc@electronjs.org>

.github/workflows/build.yml

@@ -249,4 +249,14 @@ jobs:
       gn-build-type: testing
       generate-symbols: false
       upload-to-storage: '0'
-    secrets: inherit
+    secrets: inherit
+
+  gha-done:
+    name: GitHub Actions Completed
+    runs-on: ubuntu-latest
+    needs: [docs-only, macos-x64, macos-arm64, linux-x64, linux-x64-asan, linux-arm, linux-arm64]
+    if: always() && !contains(needs.*.result, 'failure')
+    steps: 
+    - name: GitHub Actions Jobs Done
+      run: |
+        echo "All GitHub Actions Jobs are done"